Developed using our current F1 and NASCAR cooling technology, CR Racing’s extruded tube cores have unmatched performance. You too can now have the same cooling technology for the street as the top motorsports champions use week after week.

– Extruded Aluminum Tube

– Race fin that allows the fin more contact area to the coolant tube and more airflow thru the fin.

– Hemmed leading edge fin for stronger fin. Will not fold over as easy as regular fin cores.